Abstract The combination of flours from cereal and legume results in less caloric products, with high contents of fiber, proteins, ash and antioxidants. Thus, this study aimed at developing muffins made with different proportions of wholemeal rye flour (WRF) and wholemeal common black bean flour (WBF). Physicochemical and physical analyses were performed to characterize starches, flours and the muffins. Sensory analysis was also carried out. WRF had the highest values for L* value, moisture and ash contents, whereas WBF had more proteins and lipids, and heterogeneous particle size distribution. The formulation with the highest acceptability grade with total replacement of whole wheat flour, was that containing 70% WRF and 30% WBF (F2). This sample was characterized as high-quality muffin, chocolate flavor, chocolate odor, light and soft crumb. Its texture was defined as low hardness, chewiness and high cohesiveness. It was concluded that the F2 formulation had a high dietary fiber content (20%), low lipid content (8%), containing 32% resistant starch, 9% protein and 51.43 mg GAE 1001 g-1 of total phenolic content, being considered an excellent nutritional food option.

O amido de mandioca é uma matéria-prima valorizada para a produção de diversos tipos de amidos modificados para serem utilizados pela indústria de alimentos. As propriedades físico-químicas e sua disponibilidade o colocam como um ingrediente interessante e desafiador para a indústria alimentícia. Neste trabalho, amidos de mandioca modificados de uso alimentício foram adquiridos ou recebidos de produtores e analisados em relação a algumas características físico-químicas. Amostras de polvilho azedo e uma de amido nativo de mandioca foram incluídas no estudo. Os resultados mostraram que quase todos os amidos modificados foram resistentes à sinérese, produziram pastas mais estáveis ao cozimento sob agitação e algumas eram de difícil cozimento. Os polvilhos azedos apresentaram elevados valores de acidez e produziram pastas claras e instáveis ao cozimento que também foram susceptíveis à sinérese.

Cassava starch is a valued raw material for producing many kinds of modified starches for food applications. Its physicochemical properties, as well as its availability, have made it an interesting and challenging ingredient for the food industry. In the present work, food grade modified cassava starches were purchased from producers and analyzed for selected physicochemical characteristics. Samples of sour cassava starch were included, as well as one sample of native cassava starch. Results showed that almost all modified starches were resistant to syneresis, produced pastes more stable to stirred cooking, and some of them were difficult to cook. The sour cassava starches presented high acidity and resulted in clear and unstable pastes during stirred cooking, susceptible to syneresis.